Package liquibase.sqlgenerator.core

Class DropDefaultValueGenerator

java.lang.Object

liquibase.sqlgenerator.core.AbstractSqlGenerator<DropDefaultValueStatement>

liquibase.sqlgenerator.core.DropDefaultValueGenerator

All Implemented Interfaces:

PrioritizedService, SqlGenerator<DropDefaultValueStatement>

Direct Known Subclasses:

DropDefaultValueGeneratorSnowflake

public class DropDefaultValueGenerator
extends AbstractSqlGenerator<DropDefaultValueStatement>

Field Summary

Fields

Modifier and Type	Field	Description
static BiFunction	DROP_DF_MSSQL

Fields inherited from interface liquibase.servicelocator.PrioritizedService

COMPARATOR

Fields inherited from interface liquibase.sqlgenerator.SqlGenerator

EMPTY_SQL, PRIORITY_DATABASE, PRIORITY_DEFAULT

Constructor Summary

Constructors

Constructor	Description
DropDefaultValueGenerator()

Method Summary

Modifier and Type	Method	Description
Sql[]	generateSql(DropDefaultValueStatement statement, Database database, SqlGeneratorChain sqlGeneratorChain)	Generate the actual Sql for the given statement and database.
protected Column	getAffectedColumn(DropDefaultValueStatement statement)
boolean	supports(DropDefaultValueStatement statement, Database database)	Does this generator support the given statement/database combination?
ValidationErrors	validate(DropDefaultValueStatement dropDefaultValueStatement, Database database, SqlGeneratorChain sqlGeneratorChain)	Validate the data contained in the SqlStatement.

Methods inherited from class liquibase.sqlgenerator.core.AbstractSqlGenerator

generateRollbackStatementsIsVolatile, generateStatementsIsVolatile, getPriority, looksLikeFunctionCall, warn

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

DROP_DF_MSSQL

public static BiFunction DROP_DF_MSSQL

Constructor Details

DropDefaultValueGenerator

public DropDefaultValueGenerator()

Method Details

supports

public boolean supports(DropDefaultValueStatement statement,
 Database database)

Description copied from interface: SqlGenerator

Does this generator support the given statement/database combination? Do not validate the statement with this method, only return if it can support it.

Specified by:

supports in interface SqlGenerator<DropDefaultValueStatement>

Overrides:

supports in class AbstractSqlGenerator<DropDefaultValueStatement>

validate

public ValidationErrors validate(DropDefaultValueStatement dropDefaultValueStatement,
 Database database,
 SqlGeneratorChain sqlGeneratorChain)

Description copied from interface: SqlGenerator

Validate the data contained in the SqlStatement. If there are no errors, return an empty ValidationErrors object, not a null value. Liquibase will inspect the ValidationErrors result before attempting to call generateSql.

generateSql

public Sql[] generateSql(DropDefaultValueStatement statement,
 Database database,
 SqlGeneratorChain sqlGeneratorChain)

Description copied from interface: SqlGenerator

Generate the actual Sql for the given statement and database.

getAffectedColumn

protected Column getAffectedColumn(DropDefaultValueStatement statement)